Tank with a tankless water heater



FIG. 1 is a perspective view as shown from above the tank with a tankless water heater;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is an opposed side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the water heater that form no part of the claimed design. 

CLAIM The ornamental design for a tank with a tankless water heater, as shown and described. 